In the early stages of reading, word decoding skills are prerequisite to reading. Word decoding involves word discrimination, phonemic decoding, and understanding of meaning. In this process, phonemic awareness enables students to examine language independently to manipulate its component sounds, and to use letter-sound correspondences to read and spell words. The 7th national curriculum of English and the primary school English textbooks fail to provide systematic language structure focus to facilitate efficiently student acquisition of the English phonemic system. Therefore, many students suffer from lack of word decoding development as well as encoding development, particularly in the 5th and 6th grades. This study explores the English phonemic awareness of Korean primary school students. To achieve the purpose of this study, a test for phonemic awareness was developed and Korean students' phonemic awareness was examined. The test deals with six areas: phonemic segmentation, phonemic manipulation, syllable splitting, blending, oddity, and invented spelling. The results are as follows: Firstly, many students showed successful results in phonemic segmentation and oddity. However, they have difficulties with syllable splitting and invented spelling. While students have strengths in the awareness of consonants except for r-l, f-p, and b-v, they suffer from lack of awareness of vowels. Secondly, errors of invented spelling and blending showed that students have differing development stages of phonemic awareness, e.g., some students master the phonemic system perfectly whereas others perceive only the alphabetic sounds. Finally, this research suggests that a balanced approach to reading is necessary in the early reading in the Korean context.

The 7th national curriculum takes a strong stance for a student-centered curriculum as well as operating and management flexibility at the school level. This study explored the procedures of and the status on implementation of the 7th national English curriculum at the primary level. It examined the processes taken by the local boards of education in due course of facilitating the schools with the school level curriculum implementation, and the schools and teachers for the actual curriculum implementation. To achieve the goal of the study, it was conducted by questionnaires for teacher and supervisors, classroom observation, and teacher interviews. Results were interpreted by the core aspects of the 7th national curriculum: curriculum reconstruction, student-centeredness, and specialization of the curriculum. Three major elements were found in the process of curriculum modification: firstly, the local boards of education was not enough to support so that the schools developed and implemented the school-based curricula secondly, teachers did not exert autonomy in interpreting and applying curriculum to their classrooms, and finally, there was a high demand for teachers and experts with potential in the schools as well as in the board of education. For the successful settlement of curriculum, continuous efforts are needed to involve teachers in the process of curriculum implementation.

The purpose of this study is to propose the development phases and the directions of the electronic textbook for English education. In order to achieve this purpose, above all, the conception of electronic textbook based on electronic book is defined. Second, the electronic and traditional printed textbook is compared. Third, the types of electronic textbook are classified, and the practical process of developing CD-ROM titles in the primary English education is presented. In this study, it is suggested that there are six phases in the development phases of the electronic textbook: analysis - design - development - experiment - evaluation - revise - application. Furthermore, the directions of the electronic textbook are proposed in terms of the design of learning contents, functional components, and technical components systematically. Particularly, learning contents based on the national curriculum should be designed in detail. Accordingly, the characteristics of English education and the possibility of application should be considered in designing the electronic textbook.

본고는 현재 서울시의 소재 초등학교를 중심으로 한자교육의 현황을 살펴보았다. 그리고 그에 대한 문제를 발견하고 그에 대한 대안을 제시하였다. 設問 調査를 통한 初等學校 漢字敎育의 現況을 5개의 항목으로 살펴보았고, 이에 관한 5개의 문제점을 지적하였다. 그리고 이의 해결책을 아울러 제시하였고, 이와 관련하여 3개항의 보완책을 제안하였다.

Supply chains for agricultural commodities with their various constraints such as production lead time, seasonal production, and methods of storage are limited in the extent to which techniques like Just-in-Time (JIT) inventory management can be applied. It is beyond the ability of producers to control harvest time and many agricultural products are perishable so that they can incur exceptional losses in storage if they are not handled correctly. This is a source of additional costs and inefficiency in supply chain management. The purpose of this study is to reduce or eliminate such sources of loss and inefficiency and to identify success factors for the JIT inventory management system where it can be applied for agricultural products. Where ]IT techniques can be applied in supply chain management for agricultural products, costs such as transportation, inventory, and storage losses can be reduced with concurrent increases in efficiency. In the paper, some of the problems associated with applying ]IT inventory control methods in supply chain management for agricultural commodities will be reported through a series of case studies.

This study investigated the relations among Korean phonological processing skills, English vocabulary knowledge, and the learning of new English words in 6th grade children. The children were tested in phonological awareness, phonological short-term memory, and naming speed tasks, as well as English vocabulary and paired-associate learning of Korean-English word pairs. Most tasks were significantly correlated with English vocabulary and paired-associate learning. In regression analyses, phonological awareness, short-term memory, and naming speed significantly predicted English vocabulary; and English vocabulary and naming speed predicted paired-associate learning. These results suggest that Korean phonological awareness, naming speed, and short-term memory are associated with English vocabulary knowledge and learning. These findings support the transfer of phonological processing skills across second languages.

The factors of obesity related with food habits were assessed to provide information for nutrition education database. The subjects in this study were 234 primary school children in Busan. Children were classified into normal and obese groups(mildly obese, moderately obese and severely obese) by obesity index. In self-recognition of body image, only 28.6% of MI group considered themselves as 'overweight or obese'. 87.2% of the subjects controlled their weight method with exercise. With regard to meal speed, 64.5% of the subjects ate fast(≤15 min.). The study also found that 79.8% of the subjects ate breakfast, 56.4% of the subjects them were moderate by obese, 40.8% of the subjects ate snacks after dinner. Eating speed, meal volume and snacks money per day were significantly different in obesity. Preference for eating out was Korean Chinese, Western and Japanese food, in order. Favorite food for snack, such as ddukbokki, fruits, milk. fried foods and candy and caramel were significantly different in obesity(p〈0.05). However hamberger, pizza and chocolate were not significantly different in obesity. The most preference snack for all the subjects were fruits and ice cream. In food preference, potato, dduk, meats, fishes, cheese, milk, ice cream were significantly different in obesity. The distasteful food for subjects were patbab, vegetables, shellfishes and salt-fermented foods. From above results, obesity of children was related to meal speed, meal volume and snacks motley per day. Therefore, these results suggest that continuous and practical nutrition education to change food habits art necessary to avoid child obesity.

The primary growth center (MdPGC) of human fetal mandible was conspicuously distinguished in the soft X-ray view of fetal mandibles.1) As the peripheral adaptive growth of mandible advanced during the postnatal period, the MdPGC became overshadowed by condensed cortical bone. However, in the well-processed radiograms of adult mandible a condensed radiopaque image, measuring 0.5-1.0 cm in diameter, can be observed below the apex of first premolar. In this study we aimed to trace a sclerotic sequela of mandibular primary growth center during postnatal period. Panoramic radiograms of two hundreds adults and soft X-ray views of thirty dry mandible were analyzed by statistical methods. The adult MdPGC was clearly distinguishable from the mental foramen. The area of MdPGC was seldom changed in the older persons, even in the edentulous mandibles. Additionally, the benign lesions of odontogenic cysts and tumors hardly destroyed the original structure of MdPGC, while the malignant tumors of squamous cell carcinoma and metastatic cancer rapidly destroyed and resolved the radiopaque area of the MdPGC.

Recruitment of primordial follicles(PMF) is crucial for female fertility. however, factors and mechanisms that regulate this process is poorly understood. The present study was conducted to obtain an inclusive view of the gene expression and to identify novel factors and their pathways of regulating PMF arrest and/or growth initiation. Ovaries from one-day neonatal(consists of oocyte and PMF) and five-day old(consists of PMF and primary follicles, PRIF) mice were collected, either total RNA or mRNA was isolated, and suppression subtractive hybridization(SSH) was used to isolate and clone genes that differentially expressed in day 1 and day 5 ovaries. Confirmation that some of these genes are differentially expressed in PMF and/or in PRIF was accomplished by using laser captured microdissection(LCM), RT-PCR. in situ hybridization(ISH) and/or immunohistochemistry(IHC). In toto, 357 clones were sequenced and analyzed by BLAST and RIKEN program. Sequences of 330 clones significantly matched database entries while 27 clones were novel. Forty-two and 47 different genes were identified as differentially expressed in day 1 and day 5 ovaries, respectively, while 7 genes were expressed in both stages of ovaries. Day 5-subtracted library included several genes known as markers far growing follicles, such as ZP2, MATER, and fetuin. Among the genes with assigned functions, 23.8% was associated with cell cycle/apoptosis regulation, 7.1% with cellular structure, 11.9% with metabolism, 26.2% with signal transduction, and 31.0% with gene/protein expression in day 1; while 10.6%, 17.0%, 23.5%, 25.5%, and 23.4% in day 5, respectively. Genes such as GDF-8, Lats2, Septin2, and Weel were the highly expressed genes in PMF, while HSP84, Laminin2, MATER, MTi7, PTP, and Wrn were highly expressed genes in PRIF. We have successfully discovered list of genes expressed in day 1 and day 5 ovaries and confirmed that some of them are differentially expressed in PMF and/or PRIF. Gene expression profile from the present study would provide insight for the future study on the mechanism(s) involved in primordial-primary follicular transition. This work was Supported by Korean Health 21 RND Project, Ministry of Health and Welfare, Korea (01-PJ10-PG6-01GN13-0002).

강진만 해역의 6개 조사정점을 대상으로 1998년 2월부터 1998년 10월까지 계절별로 이화학적 환경요인과 일차생산력을 측정하였다. 일차생산력은 NaH14CO3을 이용한 배양방법을 사용하였고, 조사결과 2.78mgCm-3hr-1-4.92mgCm-3hr-1의 범위를 나타났으며, 계절별 일차생산력의 변화는 하계, 동계, 추계, 춘계의 순으로 나타났다. 조사정점별로는 강진만의 상류수역에 해당되는 정점 1과 2에 비해 3,